def testAssembleCcd(self):
"""Test if we can build a Ccd out of Amps"""
#print >> sys.stderr, "Skipping testRotatedCcd"; return
compImage = afwImage.ImageI(os.path.join(eups.productDir("afw"),
"tests", "test_comp.fits.gz"))
compImageTrimmed = afwImage.ImageI(os.path.join(eups.productDir("afw"), "tests",
"test_comp_trimmed.fits.gz"))
ccdId = cameraGeom.Id(1, "LsstLike")
ccdInfo = {"ampSerial" : CameraGeomTestCase.ampSerial}
ccd = cameraGeomUtils.makeCcd(self.geomPolicy, ccdId, ccdInfo=ccdInfo)
#
# Test assembly of images that require preparation for assembly (like
# LSST images)
#
outImage = cameraGeomUtils.makeImageFromCcd(ccd,
imageSource=LsstLikeImage(),
isTrimmed=False, imageFactory=afwImage.ImageU)
self.assertTrue(outImage==compImage)
if display:
cameraGeomUtils.showCcd(ccd, outImage)
ds9.incrDefaultFrame()
ccdId = cameraGeom.Id(1, "ScLike")
ccdInfo = {"ampSerial" : CameraGeomTestCase.ampSerial}
ccd = cameraGeomUtils.makeCcd(self.geomPolicy, ccdId, ccdInfo=ccdInfo)
outImage = cameraGeomUtils.makeImageFromCcd(ccd,
imageSource=ScLikeImage(),
isTrimmed=False, imageFactory=afwImage.ImageU)
self.assertTrue(outImage==compImage)
if display:
cameraGeomUtils.showCcd(ccd, outImage)
ds9.incrDefaultFrame()
#
# Trim the CCD and try again
#
ccd.setTrimmed(True)
ccdId = cameraGeom.Id(1, "LsstLike Trimmed")
ccdInfo = {"ampSerial" : CameraGeomTestCase.ampSerial}
ccd = cameraGeomUtils.makeCcd(self.geomPolicy, ccdId, ccdInfo=ccdInfo)
outImage = cameraGeomUtils.makeImageFromCcd(ccd,
imageSource=LsstLikeImage(),
isTrimmed=True, imageFactory=afwImage.ImageU)
self.assertTrue(outImage==compImage)
if display:
cameraGeomUtils.showCcd(ccd, outImage)
ds9.incrDefaultFrame()
def getExposure(self):
"""Construct a test exposure.
The test exposure has a simple WCS set, as well as a list of
unlikely header keywords that can be removed during ISR
processing to exercise that code.
Returns
-------
exposure : `lsst.afw.exposure.Exposure`
Construct exposure containing masked image of the
appropriate size.
"""
camera = self.getCamera()
detector = camera[self.config.detectorIndex]
image = afwUtils.makeImageFromCcd(detector,
isTrimmed=self.config.isTrimmed,
showAmpGain=False,
rcMarkSize=0,
binSize=1,
imageFactory=afwImage.ImageF)
var = afwImage.ImageF(image.getDimensions())
mask = afwImage.Mask(image.getDimensions())
image.assign(0.0)
maskedImage = afwImage.makeMaskedImage(image, mask, var)
exposure = afwImage.makeExposure(maskedImage)
exposure.setDetector(detector)
exposure.setWcs(self.getWcs())
visitInfo = afwImage.VisitInfo(exposureTime=self.config.expTime, darkTime=self.config.darkTime)
exposure.getInfo().setVisitInfo(visitInfo)
metadata = exposure.getMetadata()
metadata.add("SHEEP", 7.3, "number of sheep on farm")
metadata.add("MONKEYS", 155, "monkeys per tree")
metadata.add("VAMPIRES", 4, "How scary are vampires.")
ccd = exposure.getDetector()
newCcd = ccd.rebuild()
newCcd.clear()
for amp in ccd:
newAmp = amp.rebuild()
newAmp.setLinearityCoeffs((0., 1., 0., 0.))
newAmp.setLinearityType("Polynomial")
newAmp.setGain(self.config.gain)
newAmp.setSuspectLevel(25000.0)
newAmp.setSaturation(32000.0)
newCcd.append(newAmp)
exposure.setDetector(newCcd.finish())
exposure.image.array[:] = np.zeros(exposure.getImage().getDimensions()).transpose()
exposure.mask.array[:] = np.zeros(exposure.getMask().getDimensions()).transpose()
exposure.variance.array[:] = np.zeros(exposure.getVariance().getDimensions()).transpose()
return exposure
def testDefectBase(self):
"""Test DefectBases"""
#print >> sys.stderr, "Skipping testDefectBase"; return
defectsDict = cameraGeomUtils.makeDefects(self.geomPolicy)
for ccdName in ("Defective", "Defective II"):
ccd = cameraGeomUtils.makeCcd(self.geomPolicy, cameraGeom.Id(ccdName))
ccdImage = cameraGeomUtils.makeImageFromCcd(ccd)
if ccdName == "Defective":
#
# Insert some defects into the Ccd
#
for x0, y0, x1, y1 in [
(34, 0, 35, 80 ),
(34, 81, 34, 100),
(180, 100, 182, 130),
]:
bbox = afwGeom.Box2I(afwGeom.Point2I(x0, y0), afwGeom.Point2I(x1, y1))
bad = ccdImage.Factory(ccdImage, bbox, afwImage.LOCAL)
bad.set(100)
if display:
ds9.mtv(ccdImage, title="Defects")
cameraGeomUtils.showCcd(ccd, None)
defects = [v for (k, v) in defectsDict.items() if k == ccd.getId()]
if len(defects) == 0:
contine
elif len(defects) == 1:
defects = defects[0]
else:
raise RuntimeError, ("Found more than one defect set for CCD %s" % ccd.getId())
ccd.setDefects(defects)
if False:
print "CCD (%s)" % ccd.getId()
for a in ccd:
print " ", a.getId(), [str(d.getBBox()) for d in a.getDefects()]
if ccdName == "Defective" and display:
for d in ccd.getDefects():
displayUtils.drawBBox(d.getBBox(), ctype=ds9.CYAN, borderWidth=1.5)
for a in ccd:
for d in a.getDefects():
displayUtils.drawBBox(d.getBBox(), ctype=ds9.YELLOW, borderWidth=1.0)
ds9.incrDefaultFrame()
def getExposure(self):
r"""Construct a test exposure.
The test exposure has a simple WCS set, as well as a list of
unlikely header keywords that can be removed during ISR
processing to exercise that code.
Returns
-------
exposure : `lsst.afw.exposure.Exposure`
Construct exposure containing masked image of the
appropriate size.
"""
camera = self.getCamera()
detector = camera[self.config.detectorIndex]
image = afwUtils.makeImageFromCcd(detector,
isTrimmed=self.config.isTrimmed,
showAmpGain=False,
rcMarkSize=0,
binSize=1,
imageFactory=afwImage.ImageF)
var = afwImage.ImageF(image.getDimensions())
mask = afwImage.Mask(image.getDimensions())
image.assign(0.0)
maskedImage = afwImage.makeMaskedImage(image, mask, var)
exposure = afwImage.makeExposure(maskedImage)
exposure.setDetector(detector)
exposure.setWcs(self.getWcs())
visitInfo = afwImage.VisitInfo(exposureTime=self.config.expTime, darkTime=self.config.darkTime)
exposure.getInfo().setVisitInfo(visitInfo)
metadata = exposure.getMetadata()
metadata.add("SHEEP", 7.3, "number of sheep on farm")
metadata.add("MONKEYS", 155, "monkeys per tree")
metadata.add("VAMPIRES", 4, "How scary are vampires.")
for amp in exposure.getDetector():
amp.setLinearityCoeffs((0., 1., 0., 0.))
amp.setLinearityType("Polynomial")
amp.setGain(self.config.gain)
exposure.image.array[:] = np.zeros(exposure.getImage().getDimensions()).transpose()
exposure.mask.array[:] = np.zeros(exposure.getMask().getDimensions()).transpose()
exposure.variance.array[:] = np.zeros(exposure.getVariance().getDimensions()).transpose()
return exposure
def makeAssemblyInput(isPerAmp, doTrim=False):
'''!Make the input to pass to the assembly task
\param[in] isPerAmp -- If True, return a dictionary of amp exposures keyed by amp name.
If False, return a single exposure with amps mosaiced preserving non-science pixels
(e.g. overscan)
\param[in doTrim -- Trim out the non-data pixels (e.g. overscan)? Ignored if isPerAmp is True.
\return Either a dictionary of amp exposures or an exposure contining the mosaiced amps.
'''
#number of amps in x and y
nAmpX = 3
nAmpY = 3
#number of science pixels in each amp in x and y
nPixX = 512
nPixY = 1024
#number of prescan rows
pre = 4
#number of horizontal overscan columns
hOscan = 10
#number of vertical overscan rows
vOscan = 15
#number of pixels in the extended register
ext = 1
detector = createDetector(nAmpX, nAmpY, nPixX, nPixY, pre, hOscan, vOscan,
ext, isPerAmp)
print " \n\n *********** Inside makeAssemblyInput -- detector = ", detector #mssg
if isPerAmp:
print " \n ****************** isPerAmp = True, About to call makeAmpInput(detector) "
# print " makeAmpInput(detector) = ", makeAmpInput(detector)
return makeAmpInput(detector)
else:
print " \n ****************** isPerAmp = F, About to call camGeomUtils "
im = cameraGeomUtils.makeImageFromCcd(detector,
isTrimmed=doTrim,
imageFactory=afwImage.ImageF)
print " \n ********* img = ", im
ccdAssemblyInput = makeExpFromIm(im, detector)
print " \n ********* initial ccdAssemblyInput = ", ccdAssemblyInput
ccdAssemblyInput.setDetector(detector)
print " \n ********** final ccdAssemblyInput = ", ccdAssemblyInput
return ccdAssemblyInput
def trimCcd(ccd, ccdImage=""):
"""Trim a Ccd and maybe the image of the untrimmed Ccd"""
if ccdImage == "":
ccdImage = cameraGeomUtils.makeImageFromCcd(ccd)
if ccd.isTrimmed():
return ccdImage
ccd.setTrimmed(True)
if ccdImage is not None:
trimmedImage = ccdImage.Factory(ccd.getAllPixels().getDimensions())
for a in ccd:
data = ccdImage.Factory(ccdImage, a.getDataSec(False))
tdata = trimmedImage.Factory(trimmedImage, a.getDataSec())
tdata[:] = data
else:
trimmedImage = None
return trimmedImage
def trimCcd(ccd, ccdImage=""):
"""Trim a Ccd and maybe the image of the untrimmed Ccd"""
if ccdImage == "":
ccdImage = cameraGeomUtils.makeImageFromCcd(ccd)
if ccd.isTrimmed():
return ccdImage
ccd.setTrimmed(True)
if ccdImage is not None:
trimmedImage = ccdImage.Factory(ccd.getAllPixels().getDimensions())
for a in ccd:
data = ccdImage.Factory(ccdImage, a.getDataSec(False))
tdata = trimmedImage.Factory(trimmedImage, a.getDataSec())
tdata[:] = data
else:
trimmedImage = None
return trimmedImage
def makeAssemblyInput(isPerAmp, doTrim=False):
'''!Make the input to pass to the assembly task
\param[in] isPerAmp -- If True, return a dictionary of amp exposures keyed by amp name.
If False, return a single exposure with amps mosaiced preserving non-science pixels
(e.g. overscan)
\param[in doTrim -- Trim out the non-data pixels (e.g. overscan)? Ignored if isPerAmp is True.
\return Either a dictionary of amp exposures or an exposure contining the mosaiced amps.
'''
#number of amps in x and y
nAmpX = 3
nAmpY = 2
#number of science pixels in each amp in x and y
nPixX = 512
nPixY = 1024
#number of prescan rows
pre = 4
#number of horizontal overscan columns
hOscan = 10
#number of vertical overscan rows
vOscan = 15
#number of pixels in the extended register
ext = 1
detector = createDetector(nAmpX, nAmpY, nPixX, nPixY, pre, hOscan, vOscan, ext, isPerAmp)
if isPerAmp:
return makeAmpInput(detector)
else:
im = cameraGeomUtils.makeImageFromCcd(detector, isTrimmed=doTrim, imageFactory=afwImage.ImageF)
ccdAssemblyInput = makeExpFromIm(im, detector)
ccdAssemblyInput.setDetector(detector)
return ccdAssemblyInput
def trimCcd(ccd, ccdImage=""):
"""Trim a Ccd and maybe the image of the untrimmed Ccd"""
if ccdImage == "":
ccdImage = cameraGeomUtils.makeImageFromCcd(ccd)
if ccd.isTrimmed():
return ccdImage
ccd.setTrimmed(True)
if ccdImage is not None:
trimmedImage = ccdImage.Factory(ccd.getAllPixels())
for a in ccd:
data = ccdImage.Factory(ccdImage, a.getDataSec(False), afwImage.LOCAL)
tdata = trimmedImage.Factory(trimmedImage, a.getDataSec(), afwImage.LOCAL)
tdata <<= data
else:
trimmedImage = None
"""
if trimmedImage:
trimmedImage = afwMath.rotateImageBy90(trimmedImage, ccd.getOrientation().getNQuarter())
"""
return trimmedImage
def testAssembleCcd(self):
"""Test if we can build a Ccd out of Amps"""
compImage = afwImage.ImageU(os.path.join(eups.productDir("afw"),
"tests", "test_comp.fits.gz"))
compImageTrimmed = afwImage.ImageU(os.path.join(eups.productDir("afw"), "tests",
"test_comp_trimmed.fits.gz"))
ccdId = cameraGeom.Id(1, "LsstLike")
ccdInfo = {"ampSerial" : CameraGeomTestCase.ampSerial}
ccd = cameraGeomUtils.makeCcd(self.geomPolicy, ccdId, ccdInfo=ccdInfo)
#
# Test assembly of images that require preparation for assembly (like
# LSST images)
#
outImage = cameraGeomUtils.makeImageFromCcd(ccd,
imageSource=LsstLikeImage(),
isTrimmed=False, imageFactory=afwImage.ImageU)
self.assertImagesAreEqual(outImage, compImage)
if display:
cameraGeomUtils.showCcd(ccd, outImage)
ds9.incrDefaultFrame()
#
# Test assembly of images that reside in a pre-assembled state from
# the DAQ (like Suprime-Cam images)
#
ccdId = cameraGeom.Id(1, "ScLike")
ccdInfo = {"ampSerial" : CameraGeomTestCase.ampSerial}
ccd = cameraGeomUtils.makeCcd(self.geomPolicy, ccdId, ccdInfo=ccdInfo)
outImage = cameraGeomUtils.makeImageFromCcd(ccd,
imageSource=ScLikeImage(),
isTrimmed=False, imageFactory=afwImage.ImageU)
self.assertImagesAreEqual(outImage, compImage)
if display:
cameraGeomUtils.showCcd(ccd, outImage)
ds9.incrDefaultFrame()
#
# Do the same tests for trimmed ccds.
#
ccdId = cameraGeom.Id(1, "LsstLike")
ccdInfo = {"ampSerial" : CameraGeomTestCase.ampSerial}
ccd = cameraGeomUtils.makeCcd(self.geomPolicy, ccdId, ccdInfo=ccdInfo)
outImage = cameraGeomUtils.makeImageFromCcd(ccd,
imageSource=LsstLikeImage(),
isTrimmed=True, imageFactory=afwImage.ImageU)
ccd.setTrimmed(True)
self.assertImagesAreEqual(outImage, compImageTrimmed)
if display:
cameraGeomUtils.showCcd(ccd, outImage)
ds9.incrDefaultFrame()
ccdId = cameraGeom.Id(1, "ScLike")
ccdInfo = {"ampSerial" : CameraGeomTestCase.ampSerial}
ccd = cameraGeomUtils.makeCcd(self.geomPolicy, ccdId, ccdInfo=ccdInfo)
outImage = cameraGeomUtils.makeImageFromCcd(ccd,
imageSource=ScLikeImage(),
isTrimmed=True, imageFactory=afwImage.ImageU)
ccd.setTrimmed(True)
self.assertImagesAreEqual(outImage, compImageTrimmed)
if display:
cameraGeomUtils.showCcd(ccd, outImage)
ds9.incrDefaultFrame()
def testCcd(self):
"""Test if we can build a Ccd out of Amps"""
#print >> sys.stderr, "Skipping testCcd"; return
ccdId = cameraGeom.Id("CCD")
ccdInfo = {"ampSerial" : CameraGeomTestCase.ampSerial}
ccd = cameraGeomUtils.makeCcd(self.geomPolicy, ccdId, ccdInfo=ccdInfo)
if display:
cameraGeomUtils.showCcd(ccd)
ds9.incrDefaultFrame()
trimmedImage = cameraGeomUtils.makeImageFromCcd(ccd, isTrimmed=True)
cameraGeomUtils.showCcd(ccd, trimmedImage, isTrimmed=True)
ds9.incrDefaultFrame()
for i in range(2):
self.assertEqual(ccd.getSize().getMm()[i],
ccdInfo["pixelSize"]*ccd.getAllPixels(True).getDimensions()[i])
self.assertEqual(ccd.getId().getName(), ccdInfo["name"])
self.assertEqual(ccd.getAllPixels().getWidth(), ccdInfo["width"])
self.assertEqual(ccd.getAllPixels().getHeight(), ccdInfo["height"])
self.assertEqual([a.getId().getSerial() for a in ccd],
range(ccdInfo["ampIdMin"], ccdInfo["ampIdMax"] + 1))
id = cameraGeom.Id("ID%d" % ccdInfo["ampIdMax"])
self.assertTrue(ccd.findAmp(id), id)
self.assertEqual(ccd.findAmp(afwGeom.Point2I(10, 10)).getId().getSerial(), ccdInfo["ampIdMin"])
self.assertEqual(ccd.getAllPixels().getMin(),
ccd.findAmp(afwGeom.Point2I(10, 10)).getAllPixels().getMin())
self.assertEqual(ccd.getAllPixels().getMax(),
ccd.findAmp(afwGeom.Point2I(ccdInfo["width"] - 1,
ccdInfo["height"] - 1)).getAllPixels().getMax())
ps = ccd.getPixelSize()
#
# Test mapping pixel <--> mm. Use a pixel at the middle of the top of the CCD
#
pix = afwGeom.Point2D(99.5, 203.5) # wrt bottom left
pos = cameraGeom.FpPoint(0.00, 1.02) # pixel center wrt CCD center
posll = cameraGeom.FpPoint(0.00, 1.02) # llc of pixel wrt CCD center
#
# Map pix into untrimmed coordinates
#
amp = ccd.findAmp(afwGeom.Point2I(int(pix[0]), int(pix[1])))
corrI = amp.getDataSec(False).getMin() - amp.getDataSec(True).getMin()
corr = afwGeom.Extent2D(corrI.getX(), corrI.getY())
pix += corr
self.assertEqual(amp.getDiskCoordSys(), cameraGeom.Amp.AMP)
self.assertEqual(ccd.getPixelFromPosition(pos) + corr, pix)
#
# Trim the CCD and try again
#
trimmedImage = trimCcd(ccd)
if display:
ds9.mtv(trimmedImage, title='Trimmed')
cameraGeomUtils.showCcd(ccd, trimmedImage)
ds9.incrDefaultFrame()
a = ccd.findAmp(cameraGeom.Id("ID%d" % ccdInfo["ampIdMin"]))
self.assertEqual(a.getDataSec(), afwGeom.Box2I(afwGeom.Point2I(0, 0),
afwGeom.Extent2I(ccdInfo["ampWidth"], ccdInfo["ampHeight"])))
self.assertEqual(ccd.getSize().getMm()[0], ccdInfo["pixelSize"]*ccdInfo["trimmedWidth"])
self.assertEqual(ccd.getSize().getMm()[1], ccdInfo["pixelSize"]*ccdInfo["trimmedHeight"])
#
# Test mapping pixel <--> mm
#
pix = afwGeom.Point2D(99.5, 203.5) # wrt bottom left
pos = cameraGeom.FpPoint(0.00, 1.02) # pixel center wrt CCD center
posll = cameraGeom.FpPoint(0.00, 1.02) # llc of pixel wrt CCD center
self.assertEqual(ccd.getPixelFromPosition(pos), pix)
self.assertEqual(ccd.getPositionFromPixel(pix).getMm(), posll.getMm())
